【摘要】 设计了W Mo Ti TiAl系新型密度梯度材料。分别采用Ni Cu和Fe Al烧结剂 ,对W Mo合金和Mo Ti合金进行了低温热压烧结 ,讨论了合金中主要组成元素的结合形式。最终通过在 1473K ,30MPa ,1h条件下一次烧结 ,获得整体致密且平行精度较好的梯度材料 ,材料的密度在 3.81～ 17.15 g/cm3 的较大范围内沿厚度方向呈准连续变化。更多还原

【Abstract】 A new kind of material, W Mo Ti TiAl system functionally graded material, was designed. The hot pressing of W Mo and Mo Ti alloys at a low temperature was studied, and the combination form of main elements in the sintered alloys was also discussed. The dense W Mo Ti TiAl system FGM with good parallel precision, was finally obtained through one step sintering at 1 473 K for 1 h under a pressure of 30 MPa, and its density changes quasi continuously in its thickness direction within a wide range of 3.81～17.15 g/cm 3.更多还原